professional skill

例句：

1. 1. He has developed a professional skill in photography.
   他已发展出摄影的专业技能。
2. 2. She possesses the proficiency to perform any task with ease.
   她具备轻松完成任何任务的能力。
3. 3. The engineer's competence in designing complex systems is highly respected.
   这位工程师在设计复杂系统方面的专业能力受到高度尊重。